Download A Text-book of Coal-mining: For the Use of Colliery Managers and Others
Total size: 10.33 MB
ISВN: 1990000118439
Date: 25.09.2012
Fоrmats: pdf, audio, epub, android, ipad, text, ebook
Аthor: Herbert William Hughes
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The goal of coal mining is to obtain coal from the ground. Coal is valued for its energy content, and, since the 1880s, has been widely used to generate electricity.
A Text-book of Coal-mining: For the Use of Colliery Managers and Others
A Text-book of Coal-mining: For the Use of Colliery Managers and Others
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